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You searched for: subject:"image denoising"
[texts]Segmentation Based Combined Wavelet-Curvelet Approach for Image Denoising - Preety D. Swami, Alok Jain
This work proposes the use of both the wavelet transform and the curvelet transform for denoising of images corrupted by AWGN. The wavelet reconstruction contains artifacts along the edges in an image. These edges can be captured efficiently by curvelets but curvelets are challenged by smooth regions where artifacts are largely visible. The desirable algorithm for denoising a noisy image should preserve the fine structures in the image and at the same time should not introduce artifacts...
Keywords: Curvelets; Image Denoising; Parameter Estimation; Statistical Modelling; Wavelets
Downloads: 82
[texts]Image Denoising Techniques Preserving Edges
The objective of this work is to propose an image denoising technique and compare it with image denoising using ridgelets. The proposed method uses slantlet transform instead of wavelets in ridgelet transform. Experimental result shows that the proposed method is more effective than ridgelets in noise removal. The proposed method is effective in compressing images while preserving edges.
Keywords: ridgelet; slantlet transform; image denoising; compression; huffman; edge
Downloads: 66
[texts]A Hybrid Filtering Technique for Random Valued Impulse Noise Elimination on Digital Images
A novel adaptive network fuzzy inference system(ANFIS) based filter is presented for the enhancement ofimages corrupted by random valued impulse noise (RVIN).This technique is performed in two steps. In the first step,impulse noise using an Asymmetric Trimmed Median Filter(ATMF). In the second step, image restoration is obtained byan appropriately combining ATMF with ANFIS at the removalof higher level of RVIN on the digital images...
Keywords: Adaptive Neuro-fuzzy Inference System; Image denoising; Asymmetric Trimmed Median Filter
Downloads: 3
[texts]August 2013: International Journal of Science and Research (IJSR) - International Journal of Science and Research (IJSR)
Volume 2 Issue 8, August 2013
Keywords: Guyuan city; Temperature change; Linear regression analysis; Mann-Kendall test; Pettitt jump test. Urine; Urinalysis; Proteinuria; Hematuria; Glycosuria; Pyuria. people-driven constitution; constitution-making process; Zimbabwe constitution model. Tool for restitution; Roman Imperial Baths; Architectural analysis; FPGA; RS-232 interface Stress; Coping Strategies; Employee Health; Performance Hoya kerrii; Micropropagation; 2; 4-D; Callus. FPGA; BIST; Analog model. Climate Change; LP-LFSR; Switching activity Paclitaxel; cervical carcinoma; HDR brachytherapy Plaintext; Cipher text; key length; block length Biceps brachii; third head; flap surgery; musculocutaneous nerve. precipitation; Land Surface Temperature; rainfall; interpolation; cross-validation; kriging; IDW. Denoising; Contrast Enhancement; Morphological Operations; Segmentation; Fuzzy C-Means Clustering. ICT literacy; Skill assessment; Land Use/ Land Cover Change; Computational tool; Computer competency. 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Electronic procurement; public sector procurement; e-procurement implementation. Noise; Spatial Domain Filtering; Filters; Image enhancement etc. Power line communication; Channel modeling; Impulse response; High speed data. Kenyan coal; Effective viscosity; Coal analysis; Coal rank and quality; Mui basin Codec; Container; H.261; H.261; MPEG-2. Parkinson’s disease; TUG test; Functional gait performance. Literacy; illiteracy; porosity; human development index; marginalisation Wavelet; Multiwavelet; Image denoising; Gaussian noise; Speckle noise linear filters; Wavelet transform. bagasse; boiler efficiency; Dryer; moisture contain Aspect; Permeability; Information retrieval; Opinion mining; Perspective; Tweets Classification; Computer Vision System; Image Processing; Grading; Quality; SVM; Wheat multi-dimensional visualization; Inertia coefficient. Aeromagnetic data; dimension reduction; visual clutter; visual structure Cloud computing; Broker Policy; Modeling and Simulation; Data Center; Resource management; Workload Based applications Cryptography; AES; DES; Spectral; FPGA; efficient encryption/decryption implementation; pipeline. ATM; wireless transmission; ITU-T; public and private Sting Stigma Eradication Application (SSEA); Short Messaging Service (SMS); Information Technology (IT); Antiretroviral Drug (ARV). Hydroxyapatite; Polyurethane; Mechanical properties; Depth; Morphological. e-commerce; malicious user; Sniffing; Spoofing; Brute-force; Cryptography & Decryption. e-commerce; CC Redbook; Mitigation Risk; OSSTMM; NIST Expression Recognition; Sedimentary depth; Image Processing; Local Feature; Pattern Recognition; CK+; JAFFE; Computer Vision chaos; logistic equation; price dynamics; discrete dynamical systems Wireless Sensor Network; Key Management Operations; first and second layer depth. Transfusion; Pre-shared Key (PSK); NchooseK Algorithm. Sexual Networking; Sexual Practices; Men Having Sex with Men (MSM); Level of Awareness on HIV/ AIDS Comprehensive health; Community health care; primary care; Doorstep service Opportunistic Routing Algorithm; WIFI Model; Packed Red blood cell; Blood usage; Blood groups; Road traffic accidents Pattern Recognition; Handwritten Character Recognition; K-Nearest Neighbor; Kannada vowels; Feature extraction; Chain code. Cloud; Public Cloud; Private Cloud; Hybrid Cloud; Federation of Cloud; Infrastructure as a Service (Iaas); Platform as a Service (Paas); Software as a Service (Saas). Virtualization; UEC; Eucalyptus; Secure Shell Login Boro silicate glass; density; optical basicity; optical absorption. Orchidaceae; Polystachya fusiformis; mycorrhiza; pollinia; herbivory. parallel counter design; high speed; state anticipation module. Foreign exchange; portfolio; disposable income; Gross Domestic Product Gender; Career; Counselling Cloud Computing; Cloud Security; Judicial policies; regulatory control Steganography. Cryptography; security; gif image; video Double layer steel dome; span to height ratio; IS 800-2007. video-capture; motion detection; short message service; video4linux; HTTP Universal; data processing; signals; communication; noise Information and communication technology; students’ achievement; chemistry at secondary level; country specific development. Networks; mathematical; physiological; sensor; detectors; ECG cochlear implants; hearing impaired; assistive device; handicap; communication paradigm; cultural differences; discrimination; identity; deaf culture. Artificial Intelligence; Webthrough; Ontologies; Semantics MPA; Wimax; DMB; HFSS. water environment capacity; one-dimensional model; lake; parameter; pollutant Background subtraction; DTBDM; Similarity module
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